RASGRP2 p.His264=
c.792C>T · rs377103374 · VCV2893971
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0176%, sas)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | <0.2 | all four deltas below 0.2 · G>C here scores Δ0.88 · evaluated, not missing |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP -0.44 | GERP -0.36, phastCons 0.003 |
| Overall | ||
| CADD | 13.56 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0176%
South Asian · 16/91,088 alleles
Filtering AF
0.011%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00888%
Overall
0.00458%
74/1,614,006 alleles · ultra-rare
exomes 69/1,461,846 · genomes 5/152,160 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| South Asiangrpmax | 0.0176% | 5,693 |
| Finnishnot grpmax-eligible | 0.00937% | 10,671 |
| Remaining individualsnot grpmax-eligible | 0.0048% | 20,827 |
| European (non-Finnish) | 0.00398% | 25,106 |
| East Asian | 0.00223% | 44,892 |
| African / African-American | 0.00134% | 74,904 |
Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.
Variant & gene context
- Gene
- RASGRP2
- Protein
- p.His264=
- Coding
- c.792C>T
- MANE Select
- NM_001098671
- dbSNP
- rs377103374
- Type
- single nucleotide variant
- Location
- chr11:64739381 (GRCh38)
- Gene constraint
- LOEUF 0.854 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 77.48 · 2 PDB
- Residue 264
- the ras-gef domain; a UniProt-annotated variant site (in bdplt18); a UniProt-annotated variant site (in bdplt18; lack of mutant protein in platelets from a patient homozygous for the mutation)
Similar variants
- RASGRP2 p.Gly305Asp Likely pathogenic ★★ same type
- RASGRP2 p.Arg387Gly Uncertain significance ★★ ⚠ same type
- RASGRP2 p.Arg593His Uncertain significance ★★ ⚠ same type
- RASGRP2 p.Asn330Lys Uncertain significance ★★ ⚠ same type
- RASGRP2 p.Gly331Arg Uncertain significance ★★ ⚠ same type
- RASGRP2 p.Gly492Trp Uncertain significance ★★ ⚠ same type
- RASGRP2 p.Leu107Ile Uncertain significance ★★ ⚠ same type
- RASGRP2 p.Lys55Met Uncertain significance ★★ same type
Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →
Cite Sugi Variant
Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/rasgrp2-p-his264 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown